TPS563219A 17V Input, 3A Synchronous Step-Down Regulator in SOT-23 With Power-good and Soft-start |

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17V Input, 3A Synchronous Step-Down Regulator in SOT-23 With Power-good and Soft-start


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The TPS562219A and TPS563219A are simple, easy-to-use, 2-A, 3-A synchronous step-down converters in 8 pin SOT-23 package.

The devices are optimized to operate with minimum external component counts and optimized to achieve low standby current.

These switch mode power supply (SMPS) devices employ D-CAP2™ mode control providing a fast transient response and supporting both low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors with no external compensation components.

The devices always operate in continuous conduction mode, which reduces the output ripple voltage in light load compared to discontinuous conduction mode . The TPS562219A and TPS563219A are available in a 8-pin 1.6 × 2.9 (mm) SOT (DDF) package, and specified from –40°C to 85°C of ambient temperature.


  • TPS562219A: 2-A Converter With Integrated 133-mΩ and 80-mΩ FETs
  • TPS563219A: 3-A Converter With Integrated 68-mΩ and 39-mΩ FETs
  • D-CAP2™ Mode Control with 650-kHz Switching Frequency
  • Input Voltage Range: 4.5 V to 17 V
  • Output Voltage Range: 0.76 V to 7 V
  • 650-kHz Switching Frequency
  • Low Shutdown Current Less than 10 µA
  • 1% Feedback Voltage Accuracy (25°C)
  • Startup from Pre-Biased Output Voltage
  • Cycle By Cycle Overcurrent Limit
  • Hiccup-mode Under Voltage Protection
  • Non-latch OVP, UVLO and TSD Protections
  • Adjustable Soft Start
  • Power Good Output

WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer TPS563219A

  Min   Max Range
Vin  V 4.5 to 17.0V
Vout  V 0.77 to 7V
Iout  A ≤ 3A
Ambient Temp  °C -40 to 150°C


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Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Package size: mm2:W x L (PKG)
TPS563219A Order now 4.5     17     0.76     5.5     3     1     650     650     0.65     Enable
Light Load Efficiency
Power Good
Synchronous Rectification
Soft Start Adjustable    
D-CAP2     80     -40 to 85     Catalog     SOT-23-THIN | 8     Converter     8SOT-23-THIN: 8 mm2: 2.8 x 2.9 (SOT-23-THIN | 8)